Optimization of the Culture Medium of <i>Beauveria bassiana</i> and Spore Yield Using Response Surface Methodology

<i>Beauveria bassiana</i> has distinct nutrient requirements depending on the growth stage, with the mycelial growth stage being particularly nutrient-intense. When nutrients are exhausted, <i>B. bassiana</i> produces numerous spores that re-germinate and release visible hyph...

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Main Authors: Hanxiao Lou, Qizheng Luo, Qingqing Guo, Runshen Su, Jianfeng Liu, Hongli He, Yunqing Cheng
Format: Article
Language:English
Published: MDPI AG 2024-11-01
Series:Fermentation
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Online Access:https://www.mdpi.com/2311-5637/10/11/587
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author Hanxiao Lou
Qizheng Luo
Qingqing Guo
Runshen Su
Jianfeng Liu
Hongli He
Yunqing Cheng
author_facet Hanxiao Lou
Qizheng Luo
Qingqing Guo
Runshen Su
Jianfeng Liu
Hongli He
Yunqing Cheng
author_sort Hanxiao Lou
collection DOAJ
description <i>Beauveria bassiana</i> has distinct nutrient requirements depending on the growth stage, with the mycelial growth stage being particularly nutrient-intense. When nutrients are exhausted, <i>B. bassiana</i> produces numerous spores that re-germinate and release visible hyphae under suitable environmental conditions. This study aimed to use low-cost agricultural by-products for developing an optimized sporulation medium. Single-factor experiments revealed that potato, wheat bran, and wheat had the greatest influence on sporulation after 14 d of culture. Wheat, wheat bran, and corncob had the strongest effect on spore production. Using a mathematical model and Box–Behnken design, the maximum predicted sporulation using the stock medium was 5.55 × 10<sup>6</sup>/mL. The optimized formula comprised 54.82 g potato, 77.74 g wheat bran, and 101.48 g wheat. The actual stock medium produced a spore yield of 5.52 × 10<sup>6</sup>/mL. Similarly, the maximum predicted sporulation was 15.66 × 10<sup>6</sup>/mL for the culture medium. The optimized formula comprised 50.81 g wheat, 99.6 g wheat bran, and 112.59 g corncob, with a spore yield of 15.69 × 10<sup>6</sup>/mL. The high consistency between predicted and experimental values indicated that our model can accurately determine the effect of medium on sporulation.
format Article
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issn 2311-5637
language English
publishDate 2024-11-01
publisher MDPI AG
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spelling doaj-art-c501945af5d0456b809407e36fc1c2f02025-08-20T02:08:11ZengMDPI AGFermentation2311-56372024-11-01101158710.3390/fermentation10110587Optimization of the Culture Medium of <i>Beauveria bassiana</i> and Spore Yield Using Response Surface MethodologyHanxiao Lou0Qizheng Luo1Qingqing Guo2Runshen Su3Jianfeng Liu4Hongli He5Yunqing Cheng6Provincial Key Laboratory of Plant Resource Science and Green Production, Jilin Normal University, Siping 136000, ChinaProvincial Key Laboratory of Plant Resource Science and Green Production, Jilin Normal University, Siping 136000, ChinaProvincial Key Laboratory of Plant Resource Science and Green Production, Jilin Normal University, Siping 136000, ChinaProvincial Key Laboratory of Plant Resource Science and Green Production, Jilin Normal University, Siping 136000, ChinaProvincial Key Laboratory of Plant Resource Science and Green Production, Jilin Normal University, Siping 136000, ChinaProvincial Key Laboratory of Plant Resource Science and Green Production, Jilin Normal University, Siping 136000, ChinaProvincial Key Laboratory of Plant Resource Science and Green Production, Jilin Normal University, Siping 136000, China<i>Beauveria bassiana</i> has distinct nutrient requirements depending on the growth stage, with the mycelial growth stage being particularly nutrient-intense. When nutrients are exhausted, <i>B. bassiana</i> produces numerous spores that re-germinate and release visible hyphae under suitable environmental conditions. This study aimed to use low-cost agricultural by-products for developing an optimized sporulation medium. Single-factor experiments revealed that potato, wheat bran, and wheat had the greatest influence on sporulation after 14 d of culture. Wheat, wheat bran, and corncob had the strongest effect on spore production. Using a mathematical model and Box–Behnken design, the maximum predicted sporulation using the stock medium was 5.55 × 10<sup>6</sup>/mL. The optimized formula comprised 54.82 g potato, 77.74 g wheat bran, and 101.48 g wheat. The actual stock medium produced a spore yield of 5.52 × 10<sup>6</sup>/mL. Similarly, the maximum predicted sporulation was 15.66 × 10<sup>6</sup>/mL for the culture medium. The optimized formula comprised 50.81 g wheat, 99.6 g wheat bran, and 112.59 g corncob, with a spore yield of 15.69 × 10<sup>6</sup>/mL. The high consistency between predicted and experimental values indicated that our model can accurately determine the effect of medium on sporulation.https://www.mdpi.com/2311-5637/10/11/587<i>Beauveria bassiana</i>hazelnuthazel weevilsporulation
spellingShingle Hanxiao Lou
Qizheng Luo
Qingqing Guo
Runshen Su
Jianfeng Liu
Hongli He
Yunqing Cheng
Optimization of the Culture Medium of <i>Beauveria bassiana</i> and Spore Yield Using Response Surface Methodology
Fermentation
<i>Beauveria bassiana</i>
hazelnut
hazel weevil
sporulation
title Optimization of the Culture Medium of <i>Beauveria bassiana</i> and Spore Yield Using Response Surface Methodology
title_full Optimization of the Culture Medium of <i>Beauveria bassiana</i> and Spore Yield Using Response Surface Methodology
title_fullStr Optimization of the Culture Medium of <i>Beauveria bassiana</i> and Spore Yield Using Response Surface Methodology
title_full_unstemmed Optimization of the Culture Medium of <i>Beauveria bassiana</i> and Spore Yield Using Response Surface Methodology
title_short Optimization of the Culture Medium of <i>Beauveria bassiana</i> and Spore Yield Using Response Surface Methodology
title_sort optimization of the culture medium of i beauveria bassiana i and spore yield using response surface methodology
topic <i>Beauveria bassiana</i>
hazelnut
hazel weevil
sporulation
url https://www.mdpi.com/2311-5637/10/11/587
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